Power that's lighter than air.Ultra-thin, 1500mAh protective battery case made for iPhone 5. Feel the difference in the palm of your hand; 13% thinner than any of our previous iPhone juice packs. It's so thin, you won't believe there's a battery inside. Special Edition Snap PackThe phone snaps conveniently into the case, instead of sliding into it. Power, protection, style and purpose.Engineered with edge-to-edge protection and outfitted with 80% more battery life to keep your iPhone 5 safe and charged, the juice pack helium allows you to truly Do more. Its elegant, thin design makes it the perfect accessory, easily fitting into any pocket or handbag. The enhanced forward-ported acoustics redirects the iPhone audio towards you, optimizing playback and maximizing your experience. Five years of innovation in one juice pack.Actually, six years of R&D, nine generations of battery cases for iOS devices and thousands of engineering hours have resulted in the highest battery density, most efficient power management and best looking product we've ever developed. Charge anywhere, by flipping a switch.Use the LED indicator to check battery levels before you head out and flip the standby switch when you're ready to use the juice pack's battery or when you need to recharge your iPhone while on-the-go. You can also simultaneously charge your iPhone and juice pack together with the included micro-USB cable. Ultra-thin USB Charging Standby Switch LED Power Indicator